| 2024 | Pennsylvania No Till Alliance | 990EZ | Board Member | 1 | $0 | - | View return |
| 2024 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Pennsylvania No Till Alliance | 990EZ | Board Member | 1 | $750 | - | View return |
| 2023 | C L C Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | University of Maryland College Park Foundation Inc. | 990 | Emeritus Trustee | 1 | $0 | $0 | View return |
| 2023 | University of Maryland College Park Foundation Inc. | 990 | Emeritus Trustee | 1 | $0 | $0 | View return |
| 2022 | Pennsylvania No Till Alliance | 990EZ | Board Member | 1 | $1,786 | - | View return |
| 2022 | C L C Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | University of Maryland College Park Foundation Inc. | 990 | Emerita Trustee | 1 | $0 | $0 | View return |
| 2021 | Pennsylvania No Till Alliance | 990EZ | Board Member | 1 | $650 | - | View return |
| 2021 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | C L C Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | North Denver Cares | 990EZ | Director | 0 | $0 | - | View return |
| 2021 | University of Maryland College Park Foundation Inc. | 990 | Emeritus Trustee | 1 | $0 | $0 | View return |
| 2021 | University of Maryland College Park Foundation Inc. | 990 | Emeritus Trustee | 1 | $0 | $0 | View return |
| 2020 | Pennsylvania No Till Alliance | 990EZ | Board Member | 1 | $700 | - | View return |
| 2020 | North Denver Cares | 990EZ | Director | 0 | $0 | - | View return |
| 2020 | C L C Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | National Academy of Engineering Fund | 990 | Chairman (January - June) | 1 | $0 | $0 | View return |
| 2019 | National Academy of Engineering Fund | 990 | Chairman | 1 | $0 | $0 | View return |
| 2019 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Texas Academy of Medicine Engineering Science and Technology | 990 | Past President | 1 | $0 | $0 | View return |
| 2018 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Texas Academy of Medicine Engineering Science and Technology | 990 | Past President | 1 | $0 | $0 | View return |
| 2018 | National Academy of Engineering Fund | 990 | Chairman | 1 | $0 | $0 | View return |
| 2017 | Texas Academy of Medicine Engineering Science and Technology | 990 | President | 1 | $0 | $0 | View return |
| 2017 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | - | View return |
| 2017 | National Academy of Engineering Fund | 990 | Chairman | 1 | $0 | $0 | View return |
| 2016 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | - | View return |
| 2016 | Texas Academy of Medicine Engineering Science and Technology | 990 | Vice President | 1 | $0 | $0 | View return |
| 2016 | National Academy of Engineering Fund | 990 | Chairman (Jul-Dec) | 1 | $0 | $0 | View return |
| 2016 | Neighborhood Ministries Inc. | 990EZ | Chairman/Director | 1 | $0 | - | View return |
| 2015 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | - | View return |
| 2015 | Texas Academy of Medicine Engineering Science and Technology | 990 | Treasurer- Elect | 1 | $0 | $0 | View return |
| 2015 | Neighborhood Ministries Inc. | 990EZ | Chairman/Director | 1 | $0 | - | View return |
| 2014 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Acts Resource Center Inc. | 990 | Director | 10 | $0 | $0 | View return |
| 2014 | Texas Academy of Medicine Engineering Science and Technology | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Neighborhood Ministries Inc. | 990EZ | Chairman/Director | 1 | $0 | - | View return |
| 2013 | Acts Resource Center Inc. | 990 | Director | 10 | $0 | $0 | View return |
| 2013 | 46-1512245 | 990EZ | Director | 5 | $0 | - | View return |
| 2013 | Mark B Wallner Foundation a Nevada Nonprofit Corporation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | Neighborhood Ministries Inc. | 990EZ | Chairman/Director | 1 | $0 | - | View return |
| 2013 | Florida Stormwater Association Inc | 990 | Director | 1 | $0 | $0 | View return |